Too fast for the server?

[Googi]

So I was in the tradehouse having a normal flame battle based around the guy accusing me of speed hacking, and I ask the guy what his basis is for this accusation. And he says "because you jump around a lot". This displayed a lot of technical ineptness, but that's the kind of stuff you get from a guy who claims they work for Blizzard and says that it's easy to get around a Graal ban because "it only edits your start screen".

But then I ask some other people and it seems that it IS true that it appears to other players that I jump around a lot when moving. I tried getting on v2 and this was still a problem. I should emphasize that I experience little to no lag on my side, especially on v4. At first I thought that this problem was a result of my ISP capping my bandwidth, but then, through a remarkable coincidence, I met someone who not only had the same ISP as me, but had had a perfectly identical bandwidth cap placed upon them by the ISP, yet they didn't have this problem.

Then I started thinking about other players, and realized that I noticed a bit of jumpiness among players who had speeds in the low to mid 5.x range, but it's not as bad as people describe as it is with me (but my speed is 5.900).

So I thought, is it possible that we're moving so fast that the server isn't able to send out our updated locations to players fast enough, making our movement appear jumpy?

I find it unlikely that the problem is clientside (whether it by on my side or the side of the player who is seeing my movement) because (in the case of my side) I don't experience lag problems and (in the case of the the other player's side) it seems I appear jumpy to all players, and nobody has a problem seeing the movements of players with low speeds smoothly.